Aircraft cabin air entrainment filtration with condensation drain

摘要

An aircraft has a ventilation system that employs a plurality of nozzles positioned in a cavity between a sidewall of the aircraft cabin and a section of the aircraft fuselage. The nozzles receive a supply of ventilation air and direct jets of air from the nozzles, through the cavity and into the aircraft cabin. The jets of air produced by the nozzles create low-pressure areas in the cavity. At least one return air opening in the cabin sidewall communicates the low-pressure areas with the cabin interior, whereby the low pressure areas draw air from the cabin interior into the cavity where the drawn air is entrained with the jets of air produced by the nozzles. Devices inside the cavity remove suspended impurities from the air drawn into the cavity. In this manner, the ventilation system filters or sanitizes the air drawn through the system.

主权项

1. A method for reducing transfer of air suspended impurities in a cabin of an aircraft, wherein a housing containing a nozzle is positioned between a sidewall of the cabin and a section of a fuselage of the aircraft, the housing having a housing lower portion and a housing upper portion with the housing upper portion extending upwardly from the housing lower portion to an air outlet opening at an opposite end of the housing upper portion from the housing lower portion, the housing lower portion having a bottom wall and a drain hole in the bottom wall, the air outlet opening being positioned in the sidewall of the cabin, the method comprising:
supplying a flow of air to the nozzle and producing a jet of air directed upwardly from the nozzle through the housing upper portion, through the air outlet opening and into the cabin with the jet of air creating a low pressure area in the housing lower portion between the sidewall of the cabin and the section of the aircraft fuselage; drawing air from the cabin through an air return opening in the sidewall, through a drawn air inlet opening in a side of the housing and into the low pressure area in the housing lower portion, the air return opening and the drawn air inlet opening in the side of the housing communicating the low pressure area in the housing lower portion with the cabin; condensing moisture from the air drawn into the low pressure area in the housing lower portion and draining the moisture from the housing lower portion through the drain hole in the housing bottom wall; irradiating the air drawn into the low pressure area with ultra-violet light; and mixing the irradiated air with the jet of air from the nozzle and returning the irradiated air mixed with the jet of air to the cabin.